Refine http Proxy-Authenticate basic auth workflow

[tianhuyang]

Summary

• inject inbound logger into HTTP handshake options for HTTP and Mixed inbounds
• switch HTTP handshake call sites to the option-based entrypoint with HTTPServerOptions{Logger: h.logger}
• update module metadata (go.mod / go.sum) to match the dependency state used by this branch

Changed Files

• go.mod
• go.sum
• protocol/http/inbound.go
• protocol/mixed/inbound.go

Validation

• branch history squashed to one commit
• pushed force-with-lease to tianhuyang/sing-box:fix/http-proxy-auth-retry

Reference

• fix(http): refine Proxy-Authenticate basic auth workflow sing#103

[tianhuyang]

@wwqgtxx @ernado @zhangyoufu Please review

[tianhuyang]

Not needed